The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 1986
Filed:
Oct. 18, 1984
William D Zimmerman, Acton, MA (US);
Samuel C Temin, Needham, MA (US);
The Kendall Company, Boston, MA (US);
Abstract
Improved cure system for two-part acrylic adhesive compositions comprising, as a first part, a polymerizable composition of a vinyl, especially acrylate or methacrylate, monomer or monomers, optionally a polymer or oligomer, or a polyfunctional methacrylate and a peroxidic catalyst, and a second part, being an activator containing a monosubstituted thiourea, having a heteroatom in the beta or gamma position relative to the nitrogen bearing the substituent. The disclosed catalyst cure system markedly increases the rate or redox initiated polymerization of the acrylate based adhesives, and gives greater on-part life for the activator.